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Moderate earthquake, 5.1 mag strikes near Big Lake in Alaska

Earthquake location 61.4111S, -150.0279WA moderate earthquake magnitude 5.1 (ml/mb) has struck on Friday, 5 kilometers (3 miles) from Big Lake in Alaska. The temblor was reported at 22:07:27 / 10:07 pm (local time epicenter). Event id: ak20421677. Ids that are associated to the earthquake: at00pj1qgo, ak20421677, us1000hzb9. The epicenter was at a depth of 18.9 km (12 miles). Global date and time of event UTC/GMT: 01/12/18 / 2018-12-01 07:07:27 / December 1, 2018 @ 7:07 am. Exact location of event, longitude -150.0279 West, latitude 61.4111 North, depth = 18.9 km. A tsunami warning has been issued near Big Lake in Alaska (Does not indicate if a tsunami actually did or will exist).

Country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Sterling, Palmer, Gateway. The epicenter was 23 km (14 miles) from Anchorage (c. 291 800 pop), 26 km (16 miles) from Eagle River (c. 24 800 pop), 25 km (16 miles) from Knik-Fairview (c. 14 900 pop), 44 km (27 miles) from Lakes (c. 8 400 pop), 40 km (25 miles) from Tanaina (c. 8 200 pop), 37 km (23 miles) from Wasilla (c. 7 800 pop), 33 km (20 miles) from Meadow Lakes (c. 7 600 pop).

There are an estimated 1320 moderate earthquakes in the world each year. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one hundred and eighteen, in the last 10 days one hundred and nineteen, in the past 30 days one hundred and twenty and in the last 365 days one hundred and seventy-seven earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 5 km SSW of Big Lake, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -150.0279° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.4111° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 18.9 km Depth of the event in kilometers.
Place 5km SSW of Big Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-01 07:07:27 Time when the event occurred. UTC/GMT
Updated 2018-12-01 07:29:57 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 5 The total number of felt reports
CDI 2 The maximum reported intensity for the event.
MMI 6.27 The maximum estimated instrumental intensity for the event.
Alert Level green The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status automatic Indicates whether the event has been reviewed by a human.
Tsunami 1 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 401 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,ak,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.01 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak20421677 Id of event.
Event Code 20421677 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00pj1qgo,ak20421677,us1000hzb9, A comma-separated list of event ids that are associated to an event.

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